[FFmpeg-user] Invalid non monotonically increasing dts

[bat guano]

----------------------------------------
> From: richard at richsim900.plus.com
> To: ffmpeg-user at ffmpeg.org
> Date: Wed, 15 Jun 2011 12:46:42 +0100
> Subject: [FFmpeg-user] Invalid non monotonically increasing dts
>
> Downloaded a live concert (320 kbps) using get_iplayer. Unpacked the flv
> file using:
>
> ffmpeg -i input.flv -acodec copy output.m4a
>
> but ffmpeg aborts with this error message:
>
> [ipod @ 0x8dff810] Application provided invalid, non monotonically
> increasing dts to muxer in stream 0: 634952 >= 634599
> av_interleaved_write_frame(): Invalid data found when processing input
> MP4ERROR: MP4File::FindIntegerProperty: no such property -
> moov.mvhd.modificationTime
>
> Searching for a solution or workaround I found:
>
> https://lists.ffmpeg.org/pipermail/ffmpeg-devel/2011-March/110053.html
>
> and
>
> http://ffmpeg.org/pipermail/ffmpeg-user/2011-May/001053.html
>
> Not sure whether the suggested patches would break something else.
>
> Tried to re-encode the flv with:
>
> ffmpeg -i input.flv -acodec libfaac -ab 320k output.m4a
>
> This produced a playable m4a but it encoded at 152kbps instead of
> 320kbps. I wanted 320 kbps sound quality.
>
> I'm trying to find a way to unpack this flv to m4a at 320 kbps without
> losing sound quality.
>
>
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Hi Richard.
I don't know how to CURE the 'non monotonically increasing dts' problem with your file.
But I know how to help PREVENT it happening in future.
Use '--rtmp-liveradio-opts --live' option.
Information is in the thread here:- http://lists.infradead.org/pipermail/get_iplayer/2011-May/001504.html